Upper: Asics Biomorphic Fit Upper provides a superior fit as well as function. Using PHF (Personal Heel Fit), a memory foam lined heel collar that molds to the users heel, creates a personalized fit. PGuard at the toe for improved durability. Discrete Eyelet-Stay: Separated eyelets provide a comfortable personalized fit. Anti-Gravel Tongue is a special tongue construction that prevents clay from entering the shoes. Insole: Anatomical EVA insole that is removable.

Midsole: Using Solyte Midsole Material, this shoe is lighter than Asics' standard EVA and SpEVA midsoles and combines improved cushioning and durability. Asics Gel Cushioning System protects feet from the impact of competitive tennis. Impact Guidance and Heel Clutching System. Trusstic System links the rearfoot and forefoot and shores the midfoot and reduces the weight of the shoes

Outsole: Uses AHAR + (ASICS High Abrasion Resistant Rubber) for increased outsole durability. The new density of the material offers lighter weight. A modified herringbone pattern makes this shoe a good choice for multiple surfaces.

Weight: 439 grams (size 44)